Industry — Manufacturing & Engineering

Turn every dispatch into a GST tax invoice — without billing it twice

Billing software built for manufacturing and engineering firms. Raise a tax invoice against the dispatch or order you actually shipped, apply HSN and CGST/SGST/IGST from your tax maps, move goods on a delivery challan, and post it all to your accounts. Invoicing is a financial event, not a stock event — so a dispatched quantity is billed once and only once.

Against dispatch
double-bill guard — bill a shipped qty once
CGST/SGST/IGST
HSN & tax from item and party maps
Dhruv AI
receivables, GST exposure, plain-English queries
Dispatch to Cash — Live
🧾 Dispatch & Orders — To Bill DC & OA
Challan DC-0442 · 500 nos · not yet billed
Order OA-118 · against order · ready to invoice
💠 Tax Invoice — GST applied HSN + GST
CGST/SGST/IGST from item & party tax maps
Against dispatch · double-bill guard on
₹ Payment & Receipt Received
Receipt against invoice · advance adjusted
Posts to your accounts · Tally & other tools
↩ Credit Note on Return Adjusted
Sales return · auto credit note reverses value
Dhruv AI
"Which invoices are overdue past 30 days?" — answered
GST exposure · CGST/SGST/IGST summary this month
Insight: outstanding concentrated in 3 parties
Part of the Fast Suite — 12 products on one platform, built in Pune by Improsys
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Fast Complaint
Fast CRM
Fast Quality
Fast Billing
Fast ERP
Fast Audit
Fast Maintenance
Fast WMS
Fast Inventory
Fast Production
Fast Planning
Fast Project Management
Why manufacturers choose Fast Billing Software

The billing problems every
manufacturing & engineering firm knows

The same dispatch gets billed twice

Invoices are typed from a challan by hand, so a part-dispatch is billed once, then billed again on the next round. By month end, invoiced quantity doesn't match what actually shipped.

HSN and GST are keyed by memory

Each invoice line's HSN code and GST rate is typed from memory. A wrong CGST/SGST split, or IGST applied to a local party, only shows up when returns are filed.

Challan, invoice and e-way bill are re-typed

Goods move on one document, get billed on another, and the e-way bill is keyed a third time. The same numbers are re-entered three times, and they rarely agree.

Sales data is re-keyed into the accounts

Every confirmed invoice is entered again in Tally as a sales voucher, receipts a second time, credit notes a third. The accounts team retypes what billing already captured.

How Fast Billing Software fixes each one
Invoice against dispatch, onceThe tax invoice is raised against the dispatch or order, and a double-bill guard tracks how much has already been billed — so a dispatched quantity can only be invoiced once, even across part-invoices.
HSN & GST from your tax mapsItem and party tax maps set the HSN code and the correct CGST/SGST or IGST by place of supply. Amount in words, rounding and other charges like freight and packing are added automatically.
One trail: challan → invoice → e-wayThe delivery challan moves the goods and supplies the e-way-bill data; the invoice bills against that challan. Enter it once — the numbers stay tied together, not re-typed three times.
Posts to your accountsConfirmed invoices post as sales vouchers with GST, receipts as receipt vouchers, notes as credit/debit notes — to Tally and other tools. The accounts team stops re-keying operational sales.
Dispatch-to-cash lifecycle

From an order and dispatch to money in the bank —
one invoice, one traceable trail

Every sale follows the same controlled path, whether you bill against a completed dispatch or straight off an order — so billing runs on process, and the accounts always tie back to what shipped.

Order / OA
Confirmed order acceptance to bill against
Goods ship
Dispatch & Challan
Delivery challan moves goods · e-way data
Bill against dispatch
Tax Invoice
HSN + CGST/SGST/IGST · amount in words
Receipt logged
Payment & Receipt
Receipt vs invoice · advance adjusted
Post to books
Post to Accounts
Sales & receipt vouchers · Tally & tools
On return
Credit / Debit Note
Auto credit note on return · debit note
End-to-end flow

Pick the dispatch → apply GST →
print & e-way → get paid and post

Fast Billing Software gives accounts and billing teams the invoicing they keep trying to hold together with spreadsheets and re-keying — with GST, the challan and the accounts posting built in, for manufacturing and engineering firms.

Pick the source
Open a tax invoice, choose the party and the dispatch or order — lines come in with an against-dispatch reference and the double-bill guard on
Apply GST & charges
HSN and CGST/SGST/IGST come from item and party tax maps; freight, packing and other charges add on; total rounds and prints as amount in words
Confirm & ship
Save the invoice — domestic or export — print it, and use the challan and invoice details to generate the e-way bill for the goods in transit
Get paid & post
Record the receipt against the invoice with advance adjustment; the sale, GST and receipt post to your accounts and Tally with no re-keying
01 — Tax invoice against dispatch

Bill what you shipped — once, never twice

Raise a GST tax invoice against a completed dispatch or a confirmed order. Lines are pulled in with an against-dispatch reference, and a double-bill guard tracks how much of each dispatched quantity has already been billed — so the same shipment can't be invoiced twice, even across part-invoices. Cancel an invoice and the quantity is released so it can be correctly re-billed. The same system also does POS counter and B2C billing where you sell across the counter.

Invoice raised against a dispatch or order acceptance
Double-bill guard — a dispatched qty is billed only once
Domestic and export invoices; cancel releases the quantity
Order vs invoice report — see what's still pending to bill
Invoices Against Dispatch — Live
Live
Order
Type
Status
Machined parts · 500 nosChallan DC-0442
Tax inv
Raised
Gear housings · 120 nosAgainst OA-118
Tax inv
Ready
Export order · 80 nosLUT · zero-rated
Export
Draft
Castings · 1,000 nosAlready billed
Guarded
02 — HSN & GST tax engine

The right HSN and tax — every line, automatically

Each item is mapped to its HSN code and GST rate; each party to its GSTIN and tax treatment. Fast Billing computes CGST + SGST for a local sale or IGST for an inter-state one by place of supply — no guessing at the split. Other charges like freight, packing and insurance carry their own tax, the total rounds, and the amount prints in words. Bulk-import your item-to-HSN-to-GST map and party GST numbers to set it up fast. More on GST tax invoicing.

Item and party tax maps drive HSN and GST rate
CGST/SGST or IGST by place of supply, computed for you
Freight, packing and other charges with their own tax
Rounding and amount in words on every printed invoice
Tax Invoice IN-2043 — GST applied
HSN mapped
Line
Qty
Taxable
GST
Machined partHSN 8483
120
₹2.40L
18%
CastingHSN 7325
80
₹96,000
18%
Freightother charge
₹4,000
18%
03 — Delivery challan & e-way bill

Move the goods, then bill them

A delivery challan or packing slip accompanies the goods and supplies the data needed for the e-way bill. The tax invoice is then raised against that challan to attach value and GST — the two are deliberately distinct documents, which is exactly what lets the double-bill guard work and stops goods movement from being confused with billing. Challan, invoice and e-way bill share one trail, so nothing is re-typed. See GST, e-way bill & e-invoice.

Delivery challan / packing slip that moves the goods
Challan supplies e-way-bill data — no third re-entry
Invoice bills against the challan — one linked trail
e-invoice / QR available where configured
Delivery Challan DC-0442 · Live
Goods moved — invoice bills them
Item lines · packed
500 nos
Vehicle & transporter
MH12 AB
e-Way bill data ready
₹3.36L
Billed against challan
1 invoice
Challan moves goods; invoice attaches value
e-way-bill data supplied from the challan
04 — Posts to your accounts

Billing that feeds your books

A confirmed invoice posts as a sales voucher with GST; a receipt as a receipt voucher; credit and debit notes as Cr/Dr notes; and an approved supplier bill as a purchase voucher — to Tally and other tools, so your accounts team stops re-keying. Alongside it Fast Billing keeps light accounts of its own — vouchers, expenses, C-Form and budgets — and follows up on outstanding. See how it works with Tally.

Sales, receipt and purchase vouchers with GST ledgers
Supplier-bill approval before a purchase voucher posts
Light accounts — vouchers, expenses, C-Form, budgets
Works with Tally and other tools — no double entry
Post to Accounts — INV-2043
Confirmed invoice → your books
DocumentTax invoice
Sales voucherwith GST
CGST + SGST₹43,200
Receiptadvance adjusted
Supplier billapproved → purchase
Tally & toolsPosted ✓
Posts to your accounts — no re-keying
05 — Dhruv AI analytics

Ask your billing data questions — in plain English

Dhruv AI is the Fast Suite's AI analytics module. It gives billing and accounts teams a role dashboard over live invoice and receivables data, a natural-language chat that turns a plain-English question into a read-only query — validated through a security sandbox, so it can query but never change your data — and AI insight summaries on outstanding, overdue, GST exposure and sales trends, with payment and follow-up remarks clustered into labelled themes.

Billing role dashboard over live invoice and payment data
Read-only security sandbox — AI can query, never change data
Insights on outstanding, overdue, GST exposure and trends
Payment and follow-up remarks clustered into themes
Dhruv AI — Ask anything
Natural-language billing analytics
"Which invoices are overdue past 30 days?"
"GST exposure — CGST/SGST/IGST this month?"
"Top 5 parties by outstanding?"
"Sales trend vs last quarter?"
Cluster: "awaiting PO" — follow-up remarks grouped
AI insight: outstanding concentrated in a few parties
Full capability set

Everything Fast Billing Software covers
for manufacturing & engineering firms

GST tax invoicing

Tax invoices against dispatch or order, with HSN, CGST/SGST/IGST from item and party tax maps, other charges, rounding and amount in words — domestic and export, plus POS at the counter.

Delivery challan & packing

Delivery challans and packing slips that move the goods, supply the e-way-bill data, and give the invoice a document to bill against — kept distinct from billing on purpose.

Credit & debit notes

Auto credit note on a sales return that reverses the invoiced value against the dispatch, plus debit notes for rate differences, short-supply recovery and extra charges.

Payments & receipts

Customer receipts against invoices with advance adjustment, outstanding and ageing tracking, and payment follow-up over WhatsApp, email and SMS.

Accounts, vouchers & expenses

Supplier-bill approval, manual voucher entry, expense capture and approval, C-Form tracking and budgets — light accounts that feed your books rather than replace them.

Project & resource billing

For firms that bill by project or resource — raise a GST-compliant bill against a project and its bill-of-resources, for fabrication, EPC and job-work jobs.

FAQ

Manufacturing billing —
what owners and accounts teams ask us

Can I raise a tax invoice against a dispatch or order?

Yes. Open an invoice, pick the party and the dispatch or order, and the lines come in with an against-dispatch reference — GST applied, printed with amount in words.

How does the double-bill guard work?

Every dispatch line tracks how much is already invoiced, so a new invoice only bills the remainder — a shipped quantity can never be billed twice, even across part-invoices.

Where do HSN and CGST/SGST/IGST come from?

From item and party tax maps. Each item carries its HSN and rate; each party its GSTIN and treatment — so CGST/SGST or IGST is computed by place of supply automatically.

How is a challan different from the invoice?

The delivery challan moves the goods and supplies the e-way-bill data; the tax invoice bills against it. Keeping them distinct is what lets the double-bill guard work.

Does it handle export invoices and returns?

Yes — export variants can be zero-rated or under LUT, and a sales return raises an auto credit note against the dispatch. Debit notes cover rate and short-supply recovery.

Does it post to my accounts and Tally?

Confirmed invoices, receipts, notes and approved supplier bills post as the right vouchers with GST to Tally and other tools — no re-keying.

Other industries

Fast Billing Software is also used by

Bill against dispatch. Post to your accounts.

A 30-minute demo — your items, your parties, your GST on screen. See the tax invoice against dispatch, the double-bill guard, the challan and posting to your accounts work as one flow.

Get a demo See pricing
Tax invoice against dispatch HSN & CGST/SGST/IGST Challan & e-way-bill data Posts to Tally & other tools